Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => The Newcomer's Forum => Topic started by: polo16mi on August 20, 2009, 09:29:35 AM

Title: Mono preamp supplying two amps
Post by: polo16mi on August 20, 2009, 09:29:35 AM
Hi:

I have a question sticking in my head, and i ll  shoot it here, just for curious....

If i make two amp stage, identical, mono, can i supply them with just one preamp?

Like this...


preamp------amp1---spk1
         |------amp2---spk2

Title: Re: Mono preamp supplying two amps
Post by: joecool85 on August 20, 2009, 11:42:55 AM
Quote from: polo16mi on August 20, 2009, 09:29:35 AM
Hi:

I have a question sticking in my head, and i ll  shoot it here, just for curious....

If i make two amp stage, identical, mono, can i supply them with just one preamp?

Like this...


preamp------amp1---spk1
         |------amp2---spk2



It depends on who you ask.  I've heard that you can split it if both amps are on the same ground plane (IE - mounted in the same metal enclosure, with the same grounding points), and that otherwise you would need a chip to do the splitting for you.

I'll be interested to hear what others have to say about this as well.